VLG archive · Message 1469

Re: [VintageLambo] Crank bearings/questions

Author: aaron arnold

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Hello - Can anyone tell me what oversize bearings are available for the crankshaft rod journals? What is the maximum allowance before the crank is no good?Can a competent machine shop "build up" a journal that is very badly damaged? Just a few questions - I brought my spare in today to take to the machine shop for evaluation, it has damage to several journals. Might be a deciding factor between having a spare rebuildable engine, or a spare parts engine. Thanks in advance - Aaron (eng #2410) --- In VintageLambo@yahoogroups.com, "forzav12 " wrote: > Hello. > I just purchased a 1971 Jarama. I was driving it home and at first it > was running very well. I had about a 400 mile trip to complete and I > now realize that it was incredibly optomistic to expect a trouble > free journey. The car has a completely rebuilt engine and trans and I > thought it would get me home. I had to exit the interstate and was > stuck in traffic for about 15 minutes. I noticed the car began to run > a little rough and thought that I might have fouled a plug or two. It > didn"t backfire or get hot. Good oil pressure and no smoke. I stopped > for lunch and started the car after about 45 minutes. It was still > running a bit rough. I re entered the interstate and was able to > maintain 75mph without difficulty. I drove about 75 miles and noticed > that the car was struggling uphill. Once again, no overheating, good > oil pressure, no smoke and no odd engine noises. I continued on and > encountered a steeper grade. Now the car began to loose power and I > downshifted lower and lower. The car continued to slow and stalled as > I was attempting to exit the highway. > We got it off the roadway and into a parking lot. I tried to start it > and it turned over easily but wouldn"t fire. I just tried a couple of > times to start it. I removed on end of the fuel line after the filter > and turned on the punp. It seemed to pump plenty of clean gas. I > reconnected it and called a tow truck. So now its in my garage and I > was wondering if anyone has any ideas as to what might have happened. > I hope I haven"t made a catastrophic mistake. Once again, at no point > did the car smoke, get hot, loose pressure or make any nasty noises. > Thanks, > Steve

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